I HAVE A BUILT B20VTEC THAT I AM GOING TO TURBO AND I WAS WONDERING HOW MUCH BOOST CAN A B20 TAKE WITH A BLOCK GUARD. IF ANY ONE HAS DONE THIS OR KNOWS ANY INFO PLEASE HELP

 

I am just going to tell you what everyone else is going to say. It is all in the tune. I seen a b20 today on honda tech that is boosting 26psi on a stock shortblock.

 

it depends on the turbo and how much cfm the turbo can push

 

Ding ding ding.

Also. Whats the b20vtec built with? Who built it? Specs? Who installed the block guard? Who checked it out(machinist), etc etc.

I recently saw a ITR shortblock ruined because of a blockguard installed improperly.

 

bump

 

srsly you bumped a tech talk thread???
Listen to Jarrod. The improper install of a block gaurd is worse than a stock blosck. Ttraditionally Ive been told that 12psi on a bone stock B20 is safe. (I also have a boosted B20 non VTEC). If you have internals, Its really all in the tune and how big your balls are

 

You can definately go a lot higher than 12psi if you want. There are too many variables to say one certain boost level is the limit. Its more of a limit on how much torque your making. 12psi on one turbo setup is gonna be different than 12psi on another. Not to mention with a good tune if you can keep the motor from knocking you can run quite a bit more than you think on stock b20 sleeves. I've tuned multiple b20 and b20 vtecs at 15+ psi on stock sleeves and havent had any issues yet with the sleeves.

 

I have a b20 vetc turbo, no issue with sleeves on 15+ psi just dont rev past 7900-8000rpms

 

bump

 

bump again ur fucking fail